1
|
Petrick TL, Grünwald A, Braun DE. Flavone Cocrystals: A Comprehensive Approach Integrating Experimental and Virtual Methods. CRYSTAL GROWTH & DESIGN 2024; 24:4195-4212. [PMID: 38766642 PMCID: PMC11099919 DOI: 10.1021/acs.cgd.4c00293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/22/2024]
Abstract
The dapsone/flavone cocrystal system served as a benchmark for both experimental and virtual screening methods. Expanding beyond this, two additional active pharmaceutical ingredients (APIs), sulfanilamide and sulfaguanidine, structurally related to dapsone were chosen to investigate the impact of substituents on cocrystal formation. The experimental screening involved mechanochemical methods, slurry experiments, hot-melt extrusion, and the contact preparation method. The virtual screening focused on crystal structure prediction (CSP), molecular complementarity, hydrogen-bond propensity, and molecular electrostatic potentials. The CSP studies not only indicated that each of the three APIs should form cocrystals with flavone but also reproduced the known single- and multicomponent phases. Experimentally, dapsone/flavone cocrystals ACC, BCC, CCC, and DCC were reproduced, CCC was identified as a nonstoichiometric hydrate, and a fifth cocrystal (ECC), a t-butanol solvate, was discovered. The cocrystal polymorphs ACC and BCC are enantiotripically related, and DCC, exhibiting a different stoichiometric ratio, is enthalpically stabilized over the other cocrystals. For the sulfaguanidine/flavone system, two novel, enantiotripically related cocrystals were identified. The crystal structures of two cocrystals and a flavone polymorph were solved from powder X-ray diffraction data, and the stability of all cocrystals was assessed through differential scanning calorimetry and lattice energy calculations. Despite computational indications, a diverse array of cocrystallization techniques did not result in a sulfanilamide/flavone cocrystal. The driving force behind dapsone's tendency to cocrystallize with flavone can be attributed to the overall strength of flavone interactions in the cocrystals. For sulfaguanidine, the potential to form strong API···API and API···coformer interactions in the cocrystal is a contributing factor. Furthermore, flavone was found to be trimorphic.
Collapse
Affiliation(s)
- Tom L. Petrick
- Institute of Pharmacy, University
of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Alexandra Grünwald
- Institute of Pharmacy, University
of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Doris E. Braun
- Institute of Pharmacy, University
of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
2
|
Chen A, Cai P, Peng Y, Guo M, Su Y, Cai T. The role of alkyl chain length in the melt and solution crystallization of paliperidone aliphatic prodrugs. IUCRJ 2024; 11:23-33. [PMID: 37962472 PMCID: PMC10833388 DOI: 10.1107/s2052252523009582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023]
Abstract
Fatty acid-derivative prodrugs have been utilized extensively to improve the physicochemical, biopharmaceutical and pharmacokinetic properties of active pharmaceutical ingredients. However, to our knowledge, the crystallization behavior of prodrugs modified with different fatty acids has not been explored. In the present work, a series of paliperidone aliphatic prodrugs with alkyl chain lengths ranging from C4 to C16 was investigated with respect to crystal structure, crystal morphology and crystallization kinetics. The paliperidone derivatives exhibited isostructural crystal packing, despite the different alkyl chain lengths, and crystallized with the dominant (100) face in both melt and solution. The rate of crystallization for paliperidone derivatives in the melt increases with alkyl chain length owing to greater molecular mobility. In contrast, the longer chains prolong the nucleation induction time and reduce the crystal growth kinetics in solution. The results show a correlation between difficulty of nucleation in solution and the interfacial energy. This work provides insight into the crystallization behavior of paliperidone aliphatic prodrugs and reveals that the role of alkyl chain length in the crystallization behavior has a strong dependence on the crystallization method.
Collapse
Affiliation(s)
- An Chen
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Peishan Cai
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Yayun Peng
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Minshan Guo
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Yuan Su
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Ting Cai
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| |
Collapse
|
3
|
Hao X, Zhang Y, Sun Y, Liu M, Wang Q, Zhao X, He X. Polymorphs of a 1:1 salt of sulfadiazine and piperazine-relative stability, dissolution studies, pharmacokinetics and anti-meningitis efficiency. Eur J Pharm Sci 2023; 188:106503. [PMID: 37339709 DOI: 10.1016/j.ejps.2023.106503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/28/2023] [Accepted: 06/16/2023] [Indexed: 06/22/2023]
Abstract
Two new salt forms of sulfadiazine (SDZ) and piperazine (PIP) were synthesized and characterized. Out of the two polymorphs (SDZ-PIP Ⅰ and SDZ-PIP II), SDZ-PIP Ⅱ is the more stable form at low temperature, room temperature and high temperature. The solution-mediated phase transformation result shows that SDZ-PIP II can transform into pure SDZ within 15 s in phosphate buffer at 37 °C, which leads to a loss in solubility advantage. The addition of 2 mg/mL PVP K30, a polymeric crystallization inhibitor, maintains the solubility advantage and permits supersaturation for a longer period of time. SDZ-PIP II showed 2.5 times the solubility of SDZ alone. The area under the curve (AUC) of SDZ-PIP II with 2 mg/mL PVP K30 was approximately 165% of that of SDZ alone. Moreover, SDZ-PIP II with PVP K30 was more effective than SDZ alone in treating meningitis. Therefore, the SDZ-PIP II salt improves the solubility, bioavailability, and anti-meningitis activity of SDZ.
Collapse
Affiliation(s)
- Xinghui Hao
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China
| | - Yuqing Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China
| | - Yanling Sun
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China
| | - Mengge Liu
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China
| | - Qiru Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China
| | - Xinghua Zhao
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China.
| | - Xin He
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000 China.
| |
Collapse
|
4
|
Racher F, Petrick TL, Braun DE. Exploring the Supramolecular Interactions and Thermal Stability of Dapsone:Bipyridine Cocrystals by Combining Computational Chemistry with Experimentation. CRYSTAL GROWTH & DESIGN 2023; 23:4638-4654. [PMID: 37304396 PMCID: PMC10251420 DOI: 10.1021/acs.cgd.3c00387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/21/2023] [Indexed: 06/13/2023]
Abstract
The application of computational screening methodologies based on H-bond propensity scores, molecular complementarity, molecular electrostatic potentials, and crystal structure prediction has guided the discovery of novel cocrystals of dapsone and bipyridine (DDS:BIPY). The experimental screen, which included mechanochemical and slurry experiments as well as the contact preparation, resulted in four cocrystals, including the previously known DDS:4,4'-BIPY (2:1, CC44-B) cocrystal. To understand the factors governing the formation of the DDS:2,2'-BIPY polymorphs (1:1, CC22-A and CC22-B) and the two DDS:4,4'-BIPY cocrystal stoichiometries (1:1 and 2:1), different experimental conditions (such as the influence of solvent, grinding/stirring time, etc.) were tested and compared with the virtual screening results. The computationally generated (1:1) crystal energy landscapes had the experimental cocrystals as the lowest energy structures, although distinct cocrystal packings were observed for the similar coformers. H-bonding scores and molecular electrostatic potential maps correctly indicated cocrystallization of DDS and the BIPY isomers, with a higher likelihood for 4,4'-BIPY. The molecular conformation influenced the molecular complementarity results, predicting no cocrystallization for 2,2'-BIPY with DDS. The crystal structures of CC22-A and CC44-A were solved from powder X-ray diffraction data. All four cocrystals were fully characterized by a range of analytical techniques, including powder X-ray diffraction, infrared spectroscopy, hot-stage microscopy, thermogravimetric analysis, and differential scanning calorimetry. The two DDS:2,2'-BIPY polymorphs are enantiotropically related, with form B being the stable polymorph at room temperature (RT) and form A being the higher temperature form. Form B is metastable but kinetically stable at RT. The two DDS:4,4'-BIPY cocrystals are stable at room conditions; however, at higher temperatures, CC44-A transforms to CC44-B. The cocrystal formation enthalpy order, derived from the lattice energies, was calculated as follows: CC44-B > CC44-A > CC22-A.
Collapse
|
5
|
Saha BK, Nath NK, Thakuria R. Polymorphs with Remarkably Distinct Physical and/or Chemical Properties. CHEM REC 2023; 23:e202200173. [PMID: 36166697 DOI: 10.1002/tcr.202200173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/30/2022] [Indexed: 01/21/2023]
Abstract
Polymorphism in crystals is known since 1822 and the credit goes to Mitscherlich who realized the existence of different crystal structures of the same compound while working with some arsenate and phosphate salts. Later on, this phenomenon was observed also in organic crystals. With the advent of different technologies, especially the easy availability of single crystal XRD instruments, polymorphism in crystals has become a common phenomenon. Almost 37 % of compounds (single component) are polymorphic to date. As the energies of the different polymorphic forms are very close to each other, small changes in crystallization conditions might lead to different polymorphic structures. As a result, sometimes it is difficult to control polymorphism. For this reason, it is considered to be a nuisance to crystal engineering. It has been realized that the property of a material depends not only on the molecular structure but also on its crystal structure. Therefore, it is not only of interest to academia but also has widespread applications in the materials science as well as pharmaceutical industries. In this review, we have discussed polymorphism which causes significant changes in materials properties in different fields of solid-state science, such as electrical, magnetic, SHG, thermal expansion, mechanical, luminescence, color, and pharmaceutical. Therefore, this review will interest researchers from supramolecular chemistry, materials science as well as medicinal chemistry.
Collapse
Affiliation(s)
- Binoy K Saha
- Department of Chemistry, Pondicherry University, Puducherry, 605014, India
| | - Naba K Nath
- Department of Chemistry, National Institute of Technology Meghalaya, Shillong, Meghalaya 793003, India
| | - Ranjit Thakuria
- Department of Chemistry, Gauhati University, Guwahati, 781014, India
| |
Collapse
|
6
|
Liu L, Wang JR, Mei X. Enhancing the stability of active pharmaceutical ingredients by the cocrystal strategy. CrystEngComm 2022. [DOI: 10.1039/d1ce01327k] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cocrystal strategies to achieve excellent physiochemical performance under different environmental stress were highlighted here. The lattice energy and the energy barrier of degradation reactions are two pillars in a stable cocrystal construction.
Collapse
Affiliation(s)
- Liyu Liu
- University of Chinese Academy of Sciences, Beijing 100049, China
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xuefeng Mei
- University of Chinese Academy of Sciences, Beijing 100049, China
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| |
Collapse
|
7
|
Li H, Xie Y, Xue Y, Zhu P, Zhao H. Comprehensive insight into solubility, dissolution properties and solvation behaviour of dapsone in co-solvent solutions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
8
|
Wu Y, Hao X, Li J, Guan A, Zhou Z, Guo F. New insight into improving the solubility of poorly soluble drugs by preventing the formation of their hydrogen-bonds: a case of dapsone salts with camphorsulfonic and 5-sulfosalicylic acid. CrystEngComm 2021. [DOI: 10.1039/d1ce00847a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The improved solubility of two salts of dapsone (DAP) was investigated from the view point of structures and hydrogen bonding.
Collapse
Affiliation(s)
- Yanhui Wu
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Xiujia Hao
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Jianting Li
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Aiying Guan
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Zhengzheng Zhou
- Department of Hygiene Inspection & Quarantine Science, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Fang Guo
- College of Chemistry, Liaoning University, Shenyang 110036, China
| |
Collapse
|
9
|
Bouguerra M, Mahroug A, Wróbel A, Trzybiński D, Woźniak K, Belhouchet M. Physico-chemical study of new supramolecular-architectured hybrid organic–inorganic sulfates incorporating diammoniumdiphenylsulfone cations. RSC Adv 2021; 11:26368-26378. [PMID: 35479443 PMCID: PMC9037390 DOI: 10.1039/d1ra03696c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/12/2021] [Indexed: 01/18/2023] Open
Abstract
Two new hybrid organic–inorganic compounds, which incorporate 3,3′-diammoniumdiphenylsulfone or 4,4′-diammoniumdiphenylsulfone cations and sulfate anions, were synthesized and analyzed in detail.
Collapse
Affiliation(s)
- Manel Bouguerra
- Physico-Chemistry of Solid State Laboratory
- Department of Chemistry
- Faculty of Sciences of Sfax
- Sfax
- Tunisia
| | - Adel Mahroug
- Physico-Chemistry of Solid State Laboratory
- Department of Chemistry
- Faculty of Sciences of Sfax
- Sfax
- Tunisia
| | - Agata Wróbel
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warsaw
- Poland
| | - Damian Trzybiński
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warsaw
- Poland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warsaw
- Poland
| | - Mohamed Belhouchet
- Physico-Chemistry of Solid State Laboratory
- Department of Chemistry
- Faculty of Sciences of Sfax
- Sfax
- Tunisia
| |
Collapse
|
10
|
Kumar A, Singh P, Nanda A. Hot stage microscopy and its applications in pharmaceutical characterization. Appl Microsc 2020; 50:12. [PMID: 33580349 PMCID: PMC7818341 DOI: 10.1186/s42649-020-00032-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/02/2020] [Indexed: 01/27/2023] Open
Abstract
Hot stage microscopy (HSM) is a thermal analysis technique that combines the best properties of thermal analysis and microscopy. HSM is rapidly gaining interest in pharmaceuticals as well as in other fields as a regular characterization technique. In pharmaceuticals HSM is used to support differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA) observations and to detect small changes in the sample that may be missed by DSC and TGA during a thermal experiment. Study of various physical and chemical properties such sample morphology, crystalline nature, polymorphism, desolvation, miscibility, melting, solid state transitions and incompatibility between various pharmaceutical compounds can be carried out using HSM. HSM is also widely used to screen cocrystals, excipients and polymers for solid dispersions. With the advancements in research methodologies, it is now possible to use HSM in conjunction with other characterization techniques such as Fourier transform infrared spectroscopy (FTIR), DSC, Raman spectroscopy, scanning electron microscopy (SEM) which may have additional benefits over traditional characterization techniques for rapid and comprehensive solid state characterization.
Collapse
Affiliation(s)
- Arun Kumar
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana, 124001, India
| | - Pritam Singh
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana, 124001, India
| | - Arun Nanda
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana, 124001, India.
| |
Collapse
|
11
|
Solubility measurement, correlation and mixing thermodynamics properties of dapsone in twelve mono solvents. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
12
|
Su X, Zhang YN, Yin HM, Liu LX, Zhang Y, Wu LL, Zhang Q, Wang CX, Zhang L, Zhang YJ, Zhang YX. Preparation of a 1:1.5 cocrystal of kaempferol with 4,4′-bipyridine based on analyzing intermolecular interaction of building units. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
13
|
do Amaral LH, do Carmo FA, Amaro MI, de Sousa VP, da Silva LCRP, de Almeida GS, Rodrigues CR, Healy AM, Cabral LM. Development and Characterization of Dapsone Cocrystal Prepared by Scalable Production Methods. AAPS PharmSciTech 2018; 19:2687-2699. [PMID: 29968042 DOI: 10.1208/s12249-018-1101-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/05/2018] [Indexed: 12/20/2022] Open
Abstract
In this study, the formation of caffeine/dapsone (CAF/DAP) cocrystals by scalable production methods, such as liquid-assisted grinding (LAG) and spray drying, was investigated in the context of the potential use of processed cocrystal powder for pulmonary delivery. A CAF/DAP cocrystal (1:1 M ratio) was successfully prepared by slow evaporation from both acetone and ethyl acetate. Acetone, ethyl acetate, and ethanol were all successfully used to prepare cocrystals by LAG and spray drying. The powders obtained were characterized by X-ray diffractometry (XRD), differential scanning calorimetry (DSC), thermogravimetry (TGA), and Fourier transform infrared spectroscopy (FTIR). Laser diffraction analysis indicated a median particle size (D50) for spray-dried powders prepared from acetone, ethanol, and ethyl acetate of 5.4 ± 0.7, 5.2 ± 0.1, and 5.1 ± 0.0 μm respectively, which are appropriate sizes for pulmonary delivery by means of a dry powder inhaler. The solubility of the CAF/DAP cocrystal in phosphate buffer pH 7.4, prepared by spray drying using acetone, was 506.5 ± 31.5 μg/mL, while pure crystalline DAP had a measured solubility of 217.1 ± 7.8 μg/mL. In vitro cytotoxicity studies using Calu-3 cells indicated that the cocrystals were not toxic at concentrations of 0.1 and of 1 mM of DAP, while an in vitro permeability study suggested caffeine may contribute to the permeation of DAP by hindering the efflux effect. The results obtained indicate that the CAF/DAP cocrystal, particularly when prepared by the spray drying method, represents a possible suitable approach for inhalation formulations with applications in pulmonary pathologies.
Collapse
|
14
|
Fu Q, Xu XK, Liu BK, Guo F. Solid state transformations of different stoichiometric forms of an organic salt formed from 5-sulfosalicylic acid and hexamethylenetetramine upon dehydration and rehydration. CrystEngComm 2018. [DOI: 10.1039/c8ce00022k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The reversible solid state transformations between the diverse forms (e.g. hydrous/anhydrous and different stoichiometries) of a salt formed from 5-sulfosalicylic acid (A) and hexamethylenetetramine (B) have been investigated.
Collapse
Affiliation(s)
- Qiang Fu
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Xi-kun Xu
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Bao-kai Liu
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| | - Fang Guo
- College of Chemistry
- Liaoning University
- Shenyang 110036
- China
| |
Collapse
|
15
|
Zhang YN, Yin HM, Zhang Y, Zhang DJ, Su X, Kuang HX. Cocrystals of kaempferol, quercetin and myricetin with 4,4′-bipyridine: Crystal structures, analyses of intermolecular interactions and antibacterial properties. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Jia L, Xu S, Liu S, Du S, Wu S, Gong J. Polymorphs of daidzein and intermolecular interaction effect on solution crystallization. CrystEngComm 2017. [DOI: 10.1039/c7ce01716b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymorphs of DAID with enhanced dissolution rates were discovered and the intermolecular interaction effect on crystallization behavior was investigated.
Collapse
Affiliation(s)
- Lina Jia
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Shijie Xu
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Shiyuan Liu
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Shichao Du
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Songgu Wu
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Junbo Gong
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| |
Collapse
|
17
|
Gaytán-Barrientos NS, Morales-Morales D, Herrera-Ruiz D, Reyes-Martínez R, Rivera-Islas J. Sulfonate salts of the therapeutic agent dapsone: 4-[(4-aminophenyl)sulfonyl]anilinium benzenesulfonate monohydrate and 4-[(4-aminophenyl)sulfonyl]anilinium methanesulfonate monohydrate. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2016; 72:280-4. [PMID: 27045177 DOI: 10.1107/s2053229616003284] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/25/2016] [Indexed: 11/11/2022]
Abstract
Dapsone, formerly used to treat leprosy, now has wider therapeutic applications. As is the case for many therapeutic agents, low aqueous solubility and high toxicity are the main problems associated with its use. Derivatization of its amino groups has been widely explored but shows no significant therapeutic improvements. Cocrystals have been prepared to understand not only its structural properties, but also its solubility and dissolution rate. Few salts of dapsone have been described. The title salts, C12H13N2O2S(+)·C6H5O3S(-)·H2O and C12H13N2O2S(+)·CH3SO3(-)·H2O, crystallize as hydrates and both compounds exhibit the same space group (monoclinic, P21/n). The asymmetric unit of each salt consists of a 4-[(4-aminophenyl)sulfonyl]anilinium monocation, the corresponding sulfonate anion and a water molecule. The cation, anion and water molecule form hydrogen-bonded networks through N-H...O=S, N-H...Owater and Owater-H...O=S hydrogen bonds. For both salts, the water molecules interact with one sulfonate anion and two anilinium cations. The benzenesulfonate salt forms a two-dimensional network, while the hydrogen bonding within the methanesulfonate salt results in a three-dimensional network.
Collapse
Affiliation(s)
| | - David Morales-Morales
- Instituto de Química, Universidad Nacional Autónoma de México, Coyoacán, 04510 México D.F., Mexico
| | - Dea Herrera-Ruiz
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, C.P. 62209, Mexico
| | - Reyna Reyes-Martínez
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, C.P. 62209, Mexico
| | - Jesús Rivera-Islas
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, C.P. 62209, Mexico
| |
Collapse
|
18
|
Li Z, Matzger AJ. Influence of Coformer Stoichiometric Ratio on Pharmaceutical Cocrystal Dissolution: Three Cocrystals of Carbamazepine/4-Aminobenzoic Acid. Mol Pharm 2016; 13:990-5. [PMID: 26837376 DOI: 10.1021/acs.molpharmaceut.5b00843] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cocrystallization is a technique to optimize solid forms that shows great potential to improve the solubility of active pharmaceutical ingredients (APIs). In some systems, an API can form cocrystals in multiple stoichiometries with the same coformer. However, it remains unclear how coformer stoichiometry influences solubility. This paper investigates the pharmaceutical:coformer pair carbamazepine (CBZ)/p-aminobenzoic acid (PABA); both CBZ/PABA 1:1 and 2:1 cocrystals are known, and a novel 4:1 CBZ/PABA cocrystal is reported here. The 4:1 cocrystal is structurally characterized, and phase stability data suggest that it is a thermodynamically unstable form. Dissolution experiments show that there is no correlation between the cocrystal stoichiometry and dissolution rate in this system. On the other hand, with the relatively weak intermolecular interactions, metastable forms can be beneficial to dissolution rate, which suggests that more effort should be devoted to cocrystal production with kinetic growth methods.
Collapse
Affiliation(s)
- Zi Li
- Department of Chemistry, Macromolecular Science and Engineering Program, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| | - Adam J Matzger
- Department of Chemistry, Macromolecular Science and Engineering Program, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| |
Collapse
|
19
|
Saïd S, Naïli H, Bataille T, Herrera RP. Crystallisation, thermal analysis and acetal protection activity of new layered Zn( ii) hybrid polymorphs. CrystEngComm 2016. [DOI: 10.1039/c6ce00486e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
20
|
Wang JR, Bao J, Fan X, Dai W, Mei X. pH-Switchable vitamin B9gels for stoichiometry-controlled spherical co-crystallization. Chem Commun (Camb) 2016; 52:13452-13455. [DOI: 10.1039/c6cc07701c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Recyclable VB9gels can be applied to control co-crystal stoichiometry, resulting in isolation of four stoichiometric vitamin C co-crystals.
Collapse
Affiliation(s)
- Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Junjie Bao
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Xiaowu Fan
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Wenjuan Dai
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| |
Collapse
|